A handy-book of rock namesHardwrike, 1873 - 139 páginas |
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Página 17
... iron schist . b . Pyrite schist . c . Pyrrhotite schist . G. Burnt shale . Var . a . Burnt clay . b . Rock slag . c . Porcelanyte . H. Minerals forming rock masses ( see page 22 ) . Var . a . Quartz . b . Corundum , c . Apatite . d ...
... iron schist . b . Pyrite schist . c . Pyrrhotite schist . G. Burnt shale . Var . a . Burnt clay . b . Rock slag . c . Porcelanyte . H. Minerals forming rock masses ( see page 22 ) . Var . a . Quartz . b . Corundum , c . Apatite . d ...
Página 22
... iron ore . d . Pea - iron ore . e . Bog - iron ore . Subvar . a . Black . b . Yellow . c . Sparry . G. Hematite rock . Var . a . Red iron - mould . b . Reddle . c . Sparry red - ironstone . d . Specular iron . e . Topanhoacanga . H ...
... iron ore . d . Pea - iron ore . e . Bog - iron ore . Subvar . a . Black . b . Yellow . c . Sparry . G. Hematite rock . Var . a . Red iron - mould . b . Reddle . c . Sparry red - ironstone . d . Specular iron . e . Topanhoacanga . H ...
Página 28
... iron , are more or less basic , containing from thirty to forty - five per cent . of silica . As they flow out they are seen to be very fluid , and to run quickly , but they solidify much more rapidly than iron slag . Yet these basic ...
... iron , are more or less basic , containing from thirty to forty - five per cent . of silica . As they flow out they are seen to be very fluid , and to run quickly , but they solidify much more rapidly than iron slag . Yet these basic ...
Página 33
... iron - ore in addition to the mica . - D. PYRITOUS OLIGOCLASE GRANITE . Containing pyrite or marcasite , or even chalcopyrite , in addition to the other constituents . Structural Varieties . E. PORPHYRITIC OLIGOCLASE GRANITE ; Galway ...
... iron - ore in addition to the mica . - D. PYRITOUS OLIGOCLASE GRANITE . Containing pyrite or marcasite , or even chalcopyrite , in addition to the other constituents . Structural Varieties . E. PORPHYRITIC OLIGOCLASE GRANITE ; Galway ...
Página 66
... iron . It may contain felspar , mica , quartz , chrome , nickel , & c . H. Tuff . Ingenite in part , derivate in part [ Ital . tufo , Gr . tophos ] .- The mechanical accompaniments of the Plutonic rocks , consisting of the dust , powder ...
... iron . It may contain felspar , mica , quartz , chrome , nickel , & c . H. Tuff . Ingenite in part , derivate in part [ Ital . tufo , Gr . tophos ] .- The mechanical accompaniments of the Plutonic rocks , consisting of the dust , powder ...
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Términos y frases comunes
aggregate amphibole Arenaceous argillaceous Argillous Augyte beds bituminous British Calcareous carbonaceous Chloritic classed clay cloth coal colour compact concretionary Conglomeritic contains Cotta Crown 8vo crystalline crystals Demy 8vo deposited derivate rocks Dolomitic drift dykes elvanyte Euryte F.R.S. Illustrated Fcap felsitic felspar felspathic felstone Ferruginous fissile foliation formed gneiss Gneissoid granite granitoid granular Grass grit Hematitic highly siliceous Hornblendic igneous rocks Illus Ingenite intrusive Ireland Jukes labradorite lamination Lankester layers less Lignyte limestone marcasite mass matrix metamorphic metamorphosed mica micaceous Microscopic minerals occur oligoclase oligoclase granite Ophyte orthoclase Plants plates Plutonic Popular Science Review porphyritic Prof pyrite pyroxene quartz Quartzose Quartzyte R. A. Proctor Ribaned ripidolite sand sandstone schist schistose Sedges sedimentary rocks shale siliceous slate sometimes Sowerby's English Botany spheroidal steatyte stone Structural Varieties Subgroup Subvar Subvarieties surface Syenyte texture Trachyte tuff Tuffose Turf usually Varieties in Composition veins Vesicular Volcanic weather Whinstone
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